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Hyperspectral LED models for optical simulations.

Ingo Rotscholl, Markus Katona, Klaus Trampert

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    |January 7, 2017
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    Summary
    This summary is machine-generated.

    This study presents a workflow for creating accurate hyperspectral LED models for ray tracing software. The method uses spectral models and rayfiles to improve spectral and colorimetric simulations.

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    Area of Science:

    • Optics and Photonics
    • Computational Imaging
    • Materials Science

    Background:

    • Accurate spectral and colorimetric simulations in commercial ray tracing software depend on realistic light source models.
    • Existing light source models often lack detailed spectral information as a function of angle and spatial dimension.

    Purpose of the Study:

    • To develop and validate a general workflow for generating hyperspectral LED models.
    • To enable precise spectral and colorimetric simulations using commercial ray tracing software.

    Main Methods:

    • A workflow is described to create hyperspectral LED models as a linear combination of spectral models.
    • The process utilizes user-defined precisions and rayfiles obtained with various optical filters.
    • Rayfiles are converted into histogram-based models, with precision assessed via normalized cross-correlation of intensity distributions.

    Main Results:

    • The developed workflow successfully generates hyperspectral LED models.
    • Model precision is validated through analysis of intensity distributions in near-, mid-, and far-field regions.
    • The concept's efficacy is further confirmed using a spatially and spectrally defined test device.

    Conclusions:

    • The proposed workflow offers a robust method for creating accurate hyperspectral LED models.
    • This approach enhances the capability of commercial ray tracing software for spectral and colorimetric simulations.
    • The validated method contributes to more realistic optical simulations involving LED light sources.